Can you put 5w30 in a 5w20 engine?

In general, it is not recommended that you use 5w30 oil (or any other oil weight) in place of 5w20 oil, as the slightest difference in viscosity can potentially damage your engine.
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Is there a big difference between 5W20 and 5W30?

5w20 is an engine oil type characterized by its winter rating of 5 and an oil weight of 20 in warmer conditions. It is less viscous compared to 5w30. 5w30 has the same viscosity rating of 5 during winter but an oil weight of 30 during hotter conditions hence it is thicker.
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Can I use 5W20 and 5W30 together?

Yes, you can mix 5W20 and 5W30 oil. However, your engine MUST support it. Both oils should be of the same brand to prevent engine damage and should also be of a similar API service level.
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Can I use 5w30 instead of 5w20 in my Ford Fusion?

If you use 5w30 oil instead of 5w20 when it is not recommended or approved by your owner's manual, it can void your car's powertrain warranty, reduce engine efficiency, and possibly even damage your engine in the long run. Hopefully, this helps!
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What happens if you put the wrong oil weight in your car?

Using the wrong fluid can cause poor lubrication, overheating, and possibly transmission failure. A mechanic might not be able to reverse the damage, even by flushing the transmission. Mistakenly adding motor oil or brake fluid can also destroy your transmission.
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5w20 or 5w30? Which do I run and why. Is 5w20 a hoax for fuel milage?



Can I use 5w30 instead of 5W20 Reddit?

Nothing. It will run fine and you may see slightly increased fuel economy.
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Can I use 5w30 instead of 5W20 in my Jeep?

In cold temps 5w20 and 5w30 should have the same viscosity. The difference would be as the oil is warmed up, like in a running engine. The 5w30 should be a little thicker, so it should (as you mentioned) have a slightly higher oil pressure at operating temp.
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Will the wrong oil damage my engine?

Cause damage to engine life

The wrong engine oil can cause engine damage because it does not properly lubricate its components. This will lead to metal-on-metal contact since the moving parts are not being lubricated. Friction quickly follows, causing engine parts to wear.
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Is Thicker oil better for an older engine?

A: Yes. This is a practical method to improve oil pressure in an older, high-mileage engine. The slightly thicker oil film from the heavier base weight oil - 10W - can help protect worn engine bearings as well.
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Is it OK to top up engine oil with different brand?

You can add any engine oil as long as it has the right specifications — preferably with an official approval of the OEM (Original Equipment Manufacturer). Not the brand, but the specification and viscosity indicated in your car's manual are your reference for using the right oil.
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Is it OK to mix engine oil?

Yes. If it's something you do only occasionally, mixing shouldn't damage your engine. Let's say you want to top off your oil, just to keep you rolling until your next regularly scheduled maintenance check. Mixing is alright, if the oil you use is the weight (or viscosity) recommended in your owner's manual.
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Is 5w30 good for summer?

When should I use 5w30 oil? You should always use the oil recommended by your vehicle's manufacturer. However, 5w30 oil can function in temperatures as low as -30ºC and as high as 40ºC, making it an ideal choice if you drive your car in a place with relatively high seasonal temperature variations.
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What does 5W-20 mean?

5W20 Meaning

The term 5W20 describes the SAE class according to which the engine oils were specified. They are multigrade oils with very good flow properties at low temperatures. 5W means that the oil is suitable for winter temperatures down to -35 °C.
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Can I put 5W 30 in Jeep Wrangler?

Mopar recommends using six quarts of 5W-20 oil. Depending on your driving conditions (extreme heat/cold) you can also use 5W-30.
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Is 5w30 good for high mileage?

Full synthetic 5w30 oils are recommended for high-performing cars, those that carry heavy loads, and vehicles operating in high temperatures. These oils are made with high-performance additives to enable them to deal with extreme conditions.
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Is 5W20 good for winter?

5W20 motor oil is another low-temperature grade typically recommended for winter use, with a 10W-30 as an alternative for higher temperatures. This oil type is common because it provides the best fuel economy, saves fuel consumption, and has fewer exhaust emissions.
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Why does Ford use 5W20 oil?

5W-20 oil is a lighter viscosity than a 5W-30 oil and therefore has less internal engine frictional losses, or less drag on the crankshaft, pistons and valvetrain, which in turn promotes increased fuel economy.
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What cars can use 5W 30 oil?

5W-30 oil is the lead viscosity recommendation by automakers over the past four decades for use in many vehicle types - passenger cars, SUVs, light vans and trucks – including those with high-performance turbo-charged and supercharged engines.
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Is 5w30 better for winter?

An example is 5W30—the “W” stands for winter and the oil's cold weather rating. The lower the W number, the better the oil will perform in colder temperatures. Typically, a 5W oil is recommended for winter use, but synthetic oils can be formulated to flow even more easily when cold.
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What temp is 5w20 good for?

5W-20 is a comparatively thicker viscosity oil and is better for a normal operating temperature range of -22°F to 68°F.
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What happens if you put new oil on top of old oil?

What happens if you put new oil on top of old oil? When you mix new and old oil, the new oil becomes “watered down” with the lack of interfacial tension and strains to do its' job. Be sure to have your oil changed as soon as possible.
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Can I put 2 different brands of oil in my car?

THE ANSWER IS NO!

Technically, using a grade of oil that's recommended by your car manufacturer is correct. However, if you combine two different brands of motor oil, you could be at risk of damage.
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Can you switch back and forth between synthetic and regular oil?

You can switch back and forth at any time. In fact, synthetic blends are simply a mixture of synthetic and conventional oils. It is advisable that you use the same oil for top-ups if needed, thereby giving you the best protection from the oil that you have chosen.
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What happens if you mix two different engine oils?

The good news is that mixing different types of oil it will not harm your engine in any way in the short run. Most synthetic and semi-synthetic engine oils are based on regular oil and are compatible.
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